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Verify Router Connection
Purpose
Confirm that the appropriate ingress, transit, and egress routers are functioning by examining whether the packets have been received and transmitted with 0% packet loss.
Action
To determine that the routers are connected, enter the following command from the ingress and transit routers:
user@host> ping host
Sample Output
user@R1> ping 10.0.0.3 count 3 PING 10.0.0.3 (10.0.0.3): 56 data bytes 64 bytes from 10.0.0.3: icmp_seq=0 ttl=254 time=0.859 ms 64 bytes from 10.0.0.3: icmp_seq=1 ttl=254 time=0.746 ms 64 bytes from 10.0.0.3: icmp_seq=2 ttl=254 time=0.776 ms --- 10.0.0.3 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max/stddev = 0.746/0.794/0.859/0.048 ms user@R3> ping 10.0.0.6 count 3 PING 10.0.0.6 (10.0.0.6): 56 data bytes 64 bytes from 10.0.0.6: icmp_seq=0 ttl=255 time=0.968 ms 64 bytes from 10.0.0.6: icmp_seq=1 ttl=255 time=3.221 ms 64 bytes from 10.0.0.6: icmp_seq=2 ttl=255 time=0.749 ms --- 10.0.0.6 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max/stddev = 0.749/1.646/3.221/1.117 ms
Meaning
The sample output shows that ingress router R1 is receiving packets from transit router R3, and that the transit router is receiving packets from the egress router. Therefore, the routers in the LSP are connected.
